﻿// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
// 
// Copyright (c) 2012, Dr. Masroor Ehsan
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//    * Redistributions of source code must retain the above copyright
//      notice, this list of conditions and the following disclaimer.
//    * Redistributions in binary form must reproduce the above copyright
//      notice, this list of conditions and the following disclaimer in the
//      documentation and/or other materials provided with the distribution.
//    * Neither the name of the <organization> nor the
//      names of its contributors may be used to endorse or promote products
//      derived from this software without specific prior written permission.
// 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// 
// $Id: ReportManager.cs 14 2012-01-28 12:43:06Z masroore@gmail.com $
// 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

using System.Collections.Generic;
using System.ComponentModel.Composition;
using System.ComponentModel.Composition.Hosting;
using System.Reflection;
using LWObjects;
using ReportGeneratorCommon;

namespace ReportGeneratorManager
{
    public class ReportManager
    {
        private readonly Dictionary<ReportType, IReportGenerator> _generatorMap;

        public ReportManager()
        {
            _generatorMap = new Dictionary<ReportType, IReportGenerator>();
        }

        [ImportMany(typeof (IReportGenerator), AllowRecomposition = true)]
        public IEnumerable<IReportGenerator> Generators { get; set; }

        public void LoadExtensions(string dirExtensions)
        {
            try
            {
                var aggCat = new AggregateCatalog();
                aggCat.Catalogs.Add(new DirectoryCatalog(dirExtensions));
                aggCat.Catalogs.Add(new AssemblyCatalog(Assembly.GetExecutingAssembly()));

                using (var container = new CompositionContainer(aggCat))
                {
                    //var ci = new CompositionInfo(aggCat, container);
                    container.ComposeParts(this);
                    Init();
                }
            }
            catch
            {
                // Ignore
#if DEBUG
                throw;
#endif
            }
        }

        internal void Init()
        {
            _generatorMap.Clear();
            foreach (var generator in Generators)
            {
                _generatorMap.Add(generator.ReportType, generator);
            }
        }

        public void GenerateReport(IEnumerable<OrderableTest> catalog, bool textonly, bool detailed)
        {
            IReportGenerator generator;
            _generatorMap.TryGetValue(textonly ? ReportType.PlainText : ReportType.Rich, out generator);
            if (generator != null) generator.GenerateReport(catalog, detailed);
        }
    }
}